Senior Network Engineer - GPU Cluster Deployments

Nscale; Greater London; In loco; GBP 70.000 - 110.000; Tempo pieno

Descrizione del lavoro

Nscale is seeking a Senior Network Engineer to build and bring up the networks behind GPU clusters across Europe. The role is hands-on, taking network designs from hardware arrival on site through to customer acceptance.

You'll deploy, validate, and troubleshoot high-performance fabrics (Ethernet/InfiniBand), develop automation, and document runbooks to ensure repeatable builds across sites. This role involves regular travel across Europe and collaboration with PMs and vendors.

Competenze

• 5+ years of network engineering experience in large-scale data centre, cloud, or HPC environments.
• Experience at a hyperscaler or major network vendor or a comparable large-scale network.
• Strong hands-on knowledge of routing and switching: BGP, OSPF, EVPN/VXLAN, ECMP, and L2/L3 data centre design.
• Experience deploying and operating cluster networks, ideally including InfiniBand or RoCE fabrics.
• Practical experience with network automation (Python, Ansible, or similar).
• Willingness to travel across Europe to sites as needed.

Mansioni

• Deploy, configure, and validate high-performance Ethernet and InfiniBand fabrics for large GPU clusters.
• Bring up front-end, storage, and management networks and WAN edge connectivity for new sites and expansions.
• Run network acceptance testing and performance validation ahead of customer handover.
• Troubleshoot and resolve issues across routing, switching, optics, and cabling during build and early life.
• Work with Network Architecture to refine reference designs, BOMs, and build standards based on what you learn in the field.
• Build and improve automation for provisioning, configuration, and validation.
• Partner with Technical Program Managers, Data Centre Operations, and vendors to keep builds on schedule.
• Write clear runbooks and documentation so builds are repeatable across sites.

Conoscenze

Network engineering

Routing & Switching

Network automation

Travel readiness

Cloud / Data centre

Strumenti

InfiniBand

RoCE

Python

Ansible

Descrizione del lavoro

Nscale is seeking a Senior Network Engineer to build and bring up the networks behind GPU clusters across Europe. The role is hands-on, taking network designs from hardware arrival on site through to customer acceptance.

You'll deploy, validate, and troubleshoot high-performance fabrics (Ethernet/InfiniBand), develop automation, and document runbooks to ensure repeatable builds across sites. This role involves regular travel across Europe and collaboration with PMs and vendors.